static const char *Gstreamer_FindMatch(const char *strcaps)
{
struct typeinfo data;
GList *list, *copy;
guint bestrank = 0;
GstElementFactory *bestfactory = NULL;
GstCaps *caps = gst_caps_from_string(strcaps);
TRACE("%s\n", strcaps);
data.caps = caps;
data.type = "Decoder";
copy = gst_registry_feature_filter(gst_registry_get(), match_element, 0, &data);
for (list = copy; list; list = list->next) {
GstElementFactory *factory = (GstElementFactory*)list->data;
guint rank;
rank = gst_plugin_feature_get_rank(GST_PLUGIN_FEATURE(factory));
if (rank > bestrank || !bestrank) {
bestrank = rank;
bestfactory = factory;
}
}
gst_caps_unref(caps);
g_list_free(copy);
if (!bestfactory) {
FIXME("Could not find plugin for %s\n", strcaps);
return NULL;
}
return gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(bestfactory));
}
GList* GStreamerFormatHelper::GetFactories() {
NS_ASSERTION(sLoadOK, "GStreamer library not linked");
#if GST_VERSION_MAJOR >= 1
uint32_t cookie = gst_registry_get_feature_list_cookie(gst_registry_get());
#else
uint32_t cookie = gst_default_registry_get_feature_list_cookie();
#endif
if (cookie != mCookie) {
g_list_free(mFactories);
#if GST_VERSION_MAJOR >= 1
mFactories =
gst_registry_feature_filter(gst_registry_get(),
(GstPluginFeatureFilter)FactoryFilter,
false, nullptr);
#else
mFactories =
gst_default_registry_feature_filter((GstPluginFeatureFilter)FactoryFilter,
false, nullptr);
#endif
mCookie = cookie;
}
return mFactories;
}
GstElement* rygel_gst_utils_get_rtp_depayloader (GstCaps* caps) {
#line 172 "rygel-gst-utils.c"
GstElement* result = NULL;
GstRegistry* registry;
GList* features;
#line 50 "rygel-gst-utils.vala"
g_return_val_if_fail (caps != NULL, NULL);
#line 51 "rygel-gst-utils.vala"
if (!rygel_gst_utils_need_rtp_depayloader (caps)) {
#line 180 "rygel-gst-utils.c"
result = NULL;
#line 52 "rygel-gst-utils.vala"
return result;
#line 184 "rygel-gst-utils.c"
}
#line 55 "rygel-gst-utils.vala"
registry = gst_registry_get_default ();
#line 56 "rygel-gst-utils.vala"
features = gst_registry_feature_filter (registry, _rygel_gst_utils_rtp_depay_filter_gst_plugin_feature_filter, FALSE, NULL);
#line 190 "rygel-gst-utils.c"
result = rygel_gst_utils_get_best_depay (features, caps);
__g_list_free_gst_object_unref0 (features);
#line 58 "rygel-gst-utils.vala"
return result;
#line 195 "rygel-gst-utils.c"
}
static gpointer
_get_decoder_factories (gpointer arg)
{
GstElementClass *klass = arg;
GList *factories;
GstPadTemplate *templ = gst_element_class_get_pad_template (klass,
"sink");
RsnDecFactoryFilterCtx ctx = { NULL, };
GstCaps *raw;
gboolean raw_audio;
GstRegistry *registry = gst_registry_get ();
ctx.desired_caps = gst_pad_template_get_caps (templ);
raw =
gst_caps_from_string
("audio/x-raw,format=(string){ F32LE, F32BE, F64LE, F64BE }");
raw_audio = gst_caps_can_intersect (raw, ctx.desired_caps);
if (raw_audio) {
GstCaps *sub = gst_caps_subtract (ctx.desired_caps, raw);
ctx.desired_caps = sub;
} else {
gst_caps_ref (ctx.desired_caps);
}
gst_caps_unref (raw);
/* Set decoder caps to empty. Will be filled by the factory_filter */
ctx.decoder_caps = gst_caps_new_empty ();
GST_DEBUG ("Finding factories for caps: %" GST_PTR_FORMAT, ctx.desired_caps);
factories = gst_registry_feature_filter (registry,
(GstPluginFeatureFilter) rsndec_factory_filter, FALSE, &ctx);
/* If these are audio caps, we add audioconvert, which is not a decoder,
but allows raw audio to go through relatively unmolested - this will
come handy when we have to send placeholder silence to allow preroll
for those DVDs which have titles with no audio track. */
if (raw_audio) {
GstPluginFeature *feature;
GST_DEBUG ("These are audio caps, adding audioconvert");
feature =
gst_registry_find_feature (registry, "audioconvert",
GST_TYPE_ELEMENT_FACTORY);
if (feature) {
factories = g_list_append (factories, feature);
} else {
GST_WARNING ("Could not find feature audioconvert");
}
}
factories = g_list_sort (factories, (GCompareFunc) sort_by_ranks);
GST_DEBUG ("Available decoder caps %" GST_PTR_FORMAT, ctx.decoder_caps);
gst_caps_unref (ctx.decoder_caps);
gst_caps_unref (ctx.desired_caps);
return factories;
}
void
gst_rtsp_ext_list_init (void)
{
GST_DEBUG_CATEGORY_INIT (rtspext_debug, "rtspext", 0, "RTSP extension");
/* get a list of all extensions */
extensions = gst_registry_feature_filter (gst_registry_get_default (),
(GstPluginFeatureFilter) gst_rtsp_ext_list_filter, FALSE, NULL);
}
static void
init_factories (void)
{
/* first filter out the interesting element factories */
factories = gst_registry_feature_filter (
gst_registry_get_default (),
(GstPluginFeatureFilter) cb_feature_filter, FALSE, NULL);
/* sort them according to their ranks */
factories = g_list_sort (factories, (GCompareFunc) cb_compare_ranks);
}
int Uridecodebin::autoplug_continue_cb(GstElement* /*bin */,
GstPad* pad,
GstCaps* caps,
gpointer /*user_data*/) {
GList* list = gst_registry_feature_filter(
gst_registry_get(), (GstPluginFeatureFilter)sink_factory_filter, FALSE, caps);
int length = g_list_length(list);
gst_plugin_feature_list_free(list);
if (length == 0 || pad_is_image(get_pad_name(pad))) return 0;
return 1;
}
/**
* gst_device_provider_factory_list_get_device_providers:
* @minrank: Minimum rank
*
* Get a list of factories with a rank greater or equal to @minrank.
* The list of factories is returned by decreasing rank.
*
* Returns: (transfer full) (element-type Gst.DeviceProviderFactory):
* a #GList of #GstDeviceProviderFactory device providers. Use
* gst_plugin_feature_list_free() after usage.
*
* Since: 1.4
*/
GList *
gst_device_provider_factory_list_get_device_providers (GstRank minrank)
{
GList *result;
/* get the feature list using the filter */
result = gst_registry_feature_filter (gst_registry_get (),
(GstPluginFeatureFilter) device_provider_filter, FALSE, &minrank);
/* sort on rank and name */
result = g_list_sort (result, gst_plugin_feature_rank_compare_func);
return result;
}
GList* GStreamerFormatHelper::GetFactories() {
NS_ASSERTION(sLoadOK, "GStreamer library not linked");
uint32_t cookie = gst_registry_get_feature_list_cookie(gst_registry_get());
if (cookie != mCookie) {
g_list_free(mFactories);
mFactories =
gst_registry_feature_filter(gst_registry_get(),
(GstPluginFeatureFilter)FactoryFilter,
false, nullptr);
mCookie = cookie;
}
return mFactories;
}
static GList *
gst_auto_video_convert_create_factory_list (GstAutoVideoConvert *
autovideoconvert)
{
GList *result = NULL;
/* get the feature list using the filter */
result = gst_registry_feature_filter (gst_registry_get (),
(GstPluginFeatureFilter) gst_auto_video_convert_element_filter,
FALSE, autovideoconvert);
/* sort on rank and name */
result = g_list_sort (result, gst_plugin_feature_rank_compare_func);
return result;
}
/**
* gst_element_factory_list_get_elements:
* @type: a #GstElementFactoryListType
* @minrank: Minimum rank
*
* Get a list of factories that match the given @type. Only elements
* with a rank greater or equal to @minrank will be returned.
* The list of factories is returned by decreasing rank.
*
* Returns: (transfer full) (element-type Gst.ElementFactory): a #GList of
* #GstElementFactory elements. Use gst_plugin_feature_list_free() after
* usage.
*/
GList *
gst_element_factory_list_get_elements (GstElementFactoryListType type,
GstRank minrank)
{
GList *result;
FilterData data;
/* prepare type */
data.type = type;
data.minrank = minrank;
/* get the feature list using the filter */
result = gst_registry_feature_filter (gst_registry_get (),
(GstPluginFeatureFilter) element_filter, FALSE, &data);
/* sort on rank and name */
result = g_list_sort (result, gst_plugin_feature_rank_compare_func);
return result;
}
GList *
get_visualization_features (void)
{
return gst_registry_feature_filter (gst_registry_get (),
filter_features, FALSE, NULL);
}
static GstElement *
gst_auto_video_src_find_best (GstAutoVideoSrc * src)
{
GList *list, *item;
GstElement *choice = NULL;
GstMessage *message = NULL;
GSList *errors = NULL;
GstBus *bus = gst_bus_new ();
GstPad *el_pad = NULL;
GstCaps *el_caps = NULL, *intersect = NULL;
gboolean no_match = TRUE;
list = gst_registry_feature_filter (gst_registry_get_default (),
(GstPluginFeatureFilter) gst_auto_video_src_factory_filter, FALSE, src);
list = g_list_sort (list, (GCompareFunc) gst_auto_video_src_compare_ranks);
GST_LOG_OBJECT (src, "Trying to find usable video devices ...");
for (item = list; item != NULL; item = item->next) {
GstElementFactory *f = GST_ELEMENT_FACTORY (item->data);
GstElement *el;
if ((el = gst_auto_video_src_create_element_with_pretty_name (src, f))) {
GstStateChangeReturn ret;
GST_DEBUG_OBJECT (src, "Testing %s", GST_PLUGIN_FEATURE (f)->name);
/* If AutoVideoSrc has been provided with filter caps,
* accept only sources that match with the filter caps */
if (src->filter_caps) {
el_pad = gst_element_get_static_pad (GST_ELEMENT (el), "src");
el_caps = gst_pad_get_caps (el_pad);
gst_object_unref (el_pad);
GST_DEBUG_OBJECT (src,
"Checking caps: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
src->filter_caps, el_caps);
intersect = gst_caps_intersect (src->filter_caps, el_caps);
no_match = gst_caps_is_empty (intersect);
gst_caps_unref (el_caps);
gst_caps_unref (intersect);
if (no_match) {
GST_DEBUG_OBJECT (src, "Incompatible caps");
gst_object_unref (el);
continue;
} else {
GST_DEBUG_OBJECT (src, "Found compatible caps");
}
}
gst_element_set_bus (el, bus);
ret = gst_element_set_state (el, GST_STATE_READY);
if (ret == GST_STATE_CHANGE_SUCCESS) {
GST_DEBUG_OBJECT (src, "This worked!");
choice = el;
break;
}
/* collect all error messages */
while ((message = gst_bus_pop_filtered (bus, GST_MESSAGE_ERROR))) {
GST_DEBUG_OBJECT (src, "error message %" GST_PTR_FORMAT, message);
errors = g_slist_append (errors, message);
}
gst_element_set_state (el, GST_STATE_NULL);
gst_object_unref (el);
}
}
GST_DEBUG_OBJECT (src, "done trying");
if (!choice) {
if (errors) {
/* FIXME: we forward the first error for now; but later on it might make
* sense to actually analyse them */
gst_message_ref (GST_MESSAGE (errors->data));
GST_DEBUG_OBJECT (src, "reposting message %p", errors->data);
gst_element_post_message (GST_ELEMENT (src), GST_MESSAGE (errors->data));
} else {
/* send warning message to application and use a fakesrc */
GST_ELEMENT_WARNING (src, RESOURCE, NOT_FOUND, (NULL),
("Failed to find a usable video source"));
choice = gst_element_factory_make ("fakesrc", "fake-video-src");
if (g_object_class_find_property (G_OBJECT_GET_CLASS (choice), "sync"))
g_object_set (choice, "sync", TRUE, NULL);
gst_element_set_state (choice, GST_STATE_READY);
}
}
gst_object_unref (bus);
gst_plugin_feature_list_free (list);
g_slist_foreach (errors, (GFunc) gst_mini_object_unref, NULL);
g_slist_free (errors);
return choice;
}
static GstElement *
gst_auto_audio_sink_find_best (GstAutoAudioSink * sink)
{
GList *list, *item;
GstElement *choice = NULL;
GstMessage *message = NULL;
GSList *errors = NULL;
GstBus *bus = gst_bus_new ();
GstPad *el_pad = NULL;
GstCaps *el_caps = NULL;
gboolean no_match = TRUE;
list = gst_registry_feature_filter (gst_registry_get (),
(GstPluginFeatureFilter) gst_auto_audio_sink_factory_filter, FALSE, sink);
list = g_list_sort (list, (GCompareFunc) gst_auto_audio_sink_compare_ranks);
/* We don't treat sound server sinks special. Our policy is that sound
* server sinks that have a rank must not auto-spawn a daemon under any
* circumstances, so there's nothing for us to worry about here */
GST_LOG_OBJECT (sink, "Trying to find usable audio devices ...");
for (item = list; item != NULL; item = item->next) {
GstElementFactory *f = GST_ELEMENT_FACTORY (item->data);
GstElement *el;
if ((el = gst_auto_audio_sink_create_element_with_pretty_name (sink, f))) {
GstStateChangeReturn ret;
GST_DEBUG_OBJECT (sink, "Testing %s", GST_OBJECT_NAME (f));
/* If autoaudiosink has been provided with filter caps,
* accept only sinks that match with the filter caps */
if (sink->filter_caps) {
el_pad = gst_element_get_static_pad (GST_ELEMENT (el), "sink");
el_caps = gst_pad_query_caps (el_pad, NULL);
gst_object_unref (el_pad);
GST_DEBUG_OBJECT (sink,
"Checking caps: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
sink->filter_caps, el_caps);
no_match = !gst_caps_can_intersect (sink->filter_caps, el_caps);
gst_caps_unref (el_caps);
if (no_match) {
GST_DEBUG_OBJECT (sink, "Incompatible caps");
gst_object_unref (el);
continue;
} else {
GST_DEBUG_OBJECT (sink, "Found compatible caps");
}
}
gst_element_set_bus (el, bus);
ret = gst_element_set_state (el, GST_STATE_READY);
if (ret == GST_STATE_CHANGE_SUCCESS) {
GST_DEBUG_OBJECT (sink, "This worked!");
choice = el;
break;
}
/* collect all error messages */
while ((message = gst_bus_pop_filtered (bus, GST_MESSAGE_ERROR))) {
GST_DEBUG_OBJECT (sink, "error message %" GST_PTR_FORMAT, message);
errors = g_slist_append (errors, message);
}
gst_element_set_state (el, GST_STATE_NULL);
gst_object_unref (el);
}
}
GST_DEBUG_OBJECT (sink, "done trying");
if (!choice) {
if (errors) {
/* FIXME: we forward the first error for now; but later on it might make
* sense to actually analyse them */
gst_message_ref (GST_MESSAGE (errors->data));
GST_DEBUG_OBJECT (sink, "reposting message %p", errors->data);
gst_element_post_message (GST_ELEMENT (sink), GST_MESSAGE (errors->data));
} else {
/* send warning message to application and use a fakesink */
GST_ELEMENT_WARNING (sink, RESOURCE, NOT_FOUND, (NULL),
("Failed to find a usable audio sink"));
choice = gst_element_factory_make ("fakesink", "fake-audio-sink");
if (g_object_class_find_property (G_OBJECT_GET_CLASS (choice), "sync"))
g_object_set (choice, "sync", TRUE, NULL);
gst_element_set_state (choice, GST_STATE_READY);
}
}
gst_object_unref (bus);
gst_plugin_feature_list_free (list);
g_slist_foreach (errors, (GFunc) gst_mini_object_unref, NULL);
g_slist_free (errors);
return choice;
}
int main(int argc, char *argv[]) {
GstElement *pipeline, *vis_plugin;
GstBus *bus;
GstMessage *msg;
GList *list, *walk;
GstElementFactory *selected_factory = NULL;
guint flags;
char *pipeline_str;
gboolean list_plugins = FALSE;
gchar *plugin_name = NULL;
GError *error = NULL;
GOptionContext *context;
GOptionEntry options[] = {
{ "list-plugins", 'l', 0, G_OPTION_ARG_NONE, &list_plugins,
"list available plugins and exits", NULL },
{ "plugin", 'p', 0, G_OPTION_ARG_STRING, &plugin_name,
"set the desired plugin", NULL },
{ NULL }
};
context = g_option_context_new("");
g_option_context_add_main_entries(context, options, "");
if (!g_option_context_parse(context, &argc, &argv, &error)) {
g_print("option parsing failed: %s\n", error->message);
return -1;
}
g_option_context_free(context);
if (argc > 1) {
if (g_str_has_prefix(argv[1], "http://") ||
g_str_has_prefix(argv[1], "ftp://"))
pipeline_str = g_strdup_printf("%s uri=\"%s\"", PLAYBIN, argv[1]);
else if (argv[1][0] == '~')
pipeline_str = g_strdup_printf("%s uri=\"file://%s%s\"", PLAYBIN,
g_get_home_dir(), argv[1]+1);
else if (g_file_test(argv[1], G_FILE_TEST_IS_REGULAR))
pipeline_str = g_strdup_printf("playbin uri=\"file://%s\"", argv[1]);
else
pipeline_str = g_strdup_printf("%s uri=%s", PLAYBIN, DEFAULT_URI);
} else
pipeline_str = g_strdup_printf("%s uri=%s", PLAYBIN, DEFAULT_URI);
gst_init(&argc, &argv);
list = gst_registry_feature_filter(GET_PLUGIN_REGISTRY,
filter_vis_features, FALSE, NULL);
if (plugin_name == NULL)
plugin_name = "GOOM";
g_print("Available visualization plugins:\n");
for (walk = list; walk != NULL; walk = g_list_next(walk)) {
const gchar *name;
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY(walk->data);
name = gst_element_factory_get_longname(factory);
g_print(" %s\n", name);
if (selected_factory == NULL || g_str_has_prefix(name, plugin_name)) {
selected_factory = factory;
}
}
/* Don't use the factory if it's still empty */
/* e.g. no visualization plugins found */
if (!selected_factory) {
g_print("No visualization plugins found!\n");
return -1;
}
if (list_plugins == TRUE)
return 0;
g_print("Selected '%s'\n",
gst_element_factory_get_longname(selected_factory));
vis_plugin = gst_element_factory_create(selected_factory, NULL);
if (!vis_plugin)
return -1;
pipeline = gst_parse_launch(pipeline_str, NULL);
g_object_get(pipeline, "flags", &flags, NULL);
flags |= GST_PLAY_FLAG_VIS;
g_object_set(pipeline, "flags", flags, NULL);
g_object_set(pipeline, "vis-plugin", vis_plugin, NULL);
gst_element_set_state(pipeline, GST_STATE_PLAYING);
bus = gst_element_get_bus(pipeline);
msg = gst_bus_timed_pop_filtered(bus, GST_CLOCK_TIME_NONE,
GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
if (msg != NULL)
gst_message_unref(msg);
gst_plugin_feature_list_free(list);
gst_object_unref(bus);
gst_element_set_state(pipeline, GST_STATE_NULL);
gst_object_unref(pipeline);
return 0;
}
